To determine if 324 is a prime number or a composite number, we simply look at the factors for 324.
If the factors of 324 are only 324 and 1, then we know that 324 is a prime number. Otherwise, 324 is a composite number.
To explain better, if 324 is only divisible by 1 and 324, then it is a prime number, and if 324 is divisible by more than 324 and 1, then it is a composite number.
The factors of 324 are as follows:
1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 324
Therefore, since 324 is divisible by more than one and itself, the answer to the
question "Is 324 prime or composite?" is highlighted in blue below.
composite
Is 325 prime or composite?
OK. Now you know that 324 is a composite number. Use our logic above and see if
you can figure out if the next number on our list is prime or composite before you check your answer.
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